72230744793577 has 2 divisors, whose sum is σ = 72230744793578. Its totient is φ = 72230744793576.

The previous prime is 72230744793541. The next prime is 72230744793637. The reversal of 72230744793577 is 77539744703227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68647008051801 + 3583736741776 = 8285349^2 + 1893076^2 .

It is a cyclic number.

It is not a de Polignac number, because 72230744793577 - 2¹⁵ = 72230744760809 is a prime.

It is not a weakly prime, because it can be changed into another prime (72230744793517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36115372396788 + 36115372396789.

It is an arithmetic number, because the mean of its divisors is an integer number (36115372396789).

Almost surely, 2^{72230744793577} is an apocalyptic number.

It is an amenable number.

72230744793577 is a deficient number, since it is larger than the sum of its proper divisors (1).

72230744793577 is an equidigital number, since it uses as much as digits as its factorization.

72230744793577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435637440, while the sum is 67.

The spelling of 72230744793577 in words is "seventy-two trillion, two hundred thirty billion, seven hundred forty-four million, seven hundred ninety-three thousand, five hundred seventy-seven".